{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "arguments": ["vulnerable system", "supported platform", "vulnerable system version", "time", "discoverer", "vulnerability", "common vulnerabilities and exposures"]}], "input": "This month , Microsoft fixed security flaws in Microsoft Windows , Internet Explorer , Microsoft Edge , ChakraCore , ."}
{"discover vulnerability": []}